| When production is finished or nearly finished and final payment is still under buyer control. | When goods are packed, pickup is close, and shipment release is the decision. |
| Product condition, visible defects, function checks when scoped, packaging, labels, and sampled quantity signals. | Cartons, packing condition, labels, shipping marks, packing-list match, and pickup readiness. |
| Approve, hold payment, request rework, sort, replace, or re-inspect. | Approve pickup, delay collection, correct carton/label issues, or hold final release. |
| Not lab testing, certification review, or a guarantee every defect is found. | Not control over transit damage, customs, or forwarder handling after pickup. |